Double wall of plastic filled interlocked blocks



June 2, 1953 v. A. RIGAUMONT 2,640,348 DOUBLE WALL OF PLASTIC FILLED INTERLOCKED BLOCKS Filed Sept. 27, 1950 2 Sheets-Sheet l Jfig. 6'.

5 j 7. P'JQ INVENTOR l zctorifligaumoni' wall. .curely bonded to each other and to the header blocks to make a firm double wall strongly held together by the header blocks, with a space he- P'atentecl June 2, 195 3 UNITED STATES. PATENT OFF E BLE WALL F T C F LLED 'IN'liERLOCKED BLooKs 1 Claim.

This invention relates to a building block suitable for construction of a wall, and more particularly to a header block suitable for use across spaced inner and outer walls of stretcher blocks.

The building blocks shown in my Patent No. 2,482,719 of September 20, 1949, comprise stretcher and header blocks which are ribbed and keyed in such manner as to permit the blocks to be laid in direct contact with each other with spaces therebetween along the keys and between the ribs for receiving mortar to hold the blocks together. In this way the blocks are more easily laid in accurate alignment than in the case of conventional building blocks, and the mortar is more easily applied and is required in smaller quantities. The blocks disclosed in the patent include stretcher blocks adapted to be laid to-- gether in two parallel spaced walls, and header blocks adapted to be laid across the walls to bind them together, with the stretcher and header blocks so formed that grouting pouredbetween adjacent header blocks flows down and occupies not only the spaces between adjacent stretcher blocks and portions of header blocks in the same wall, but also into the space between the walls. In some cases this might be desired, but in many cases it is disadvantageous because it requires enough grouting to fill the space between the walls and because it prevents the space between the walls from being employed for other useful purposes.

In accordance with my present invention this disadvantage of the blocks shown in my Patent No. 2,482,719 is overcome by modifying the form of the header block in such a manner that the air space between the two walls is preserved and grouting poured between adjacent header blocks is confined to the spaces between stretcher blocks and portions of header blocks in the same In this way the stretcher blocks are setwe en all of the parallel spaced stretcher bloclrs for air or other insulating material or for wiring and the like. The form of header block disclosed in my said Patent No. 2,482,719 is rnodiiied in accordance with the present invention by adding an additional central rib between the outer ribs which engage adjacent blocm. The central rib also bears against adjacent blocks and not only controls the flow of grouting but also strengthens the wall structurewhether the block is used in a single course of like blocks laid as headersacross a double wall or is insteadused 2 with successive courses of like blocks to make a single wall. i

Other details, objects and advantages of the building block of my invention will become apparent from the following detailed description and in the accompanying drawings; I have shown in the drawings, for purposes of illustration only, the following present preferred embodiment of my invention, in which:

Figure 1 is a perspective view of a header block. in accordance with the invention, showing its top and front faces and one end face;

Figure 2 is a perspective view of the block r'otated about a' Vertical axis from the position shown in Figure '1, and showing the top and rear faces and the other end face of the block;

Figure 3 is a top plan of the block relative to the position shown in Figure 1;

Figure 4 is an end elevation of the block, showing the end face appearing in Figure 1, with the block in bottom-'s'ide-up position relative to Figure 1;

Figure 5 is a bottom plan of the block relative to the position shown in Figure 1;

Figure '6. is an end elevation corresponding to Figure 4 but taken from the opposite end of the block;

Figure 7 is, anelevation of the rear face of the block with the' block in bottom-side-up position relative to the position shown in Figure 1 Figure 8. is an elevation of the front face of the block, with the block in bottom-side-up position relative to the position shown in Figure 1;

Figure 9 is a top plan of two parallel spaced rows of stretcher blocks forming one course of a double wall;

Figure 10 is a top elevation of a course of header blocks laid across the stretcher block's shown in Figure 9 to form an additional course of the double wall; and

Figure 11 is a crossesectional view on the line XI-XI in Figure 10.

Referring now more particularly to the drawings and initially to Figures 1-8, there is provided a header block 10 having a solid body with a front face I l, a rear face a top face it, a bottom face M and opposite end faces 15 and it, the said faces lying in the planes of a right rectangular prism. Two outer narrow ribs 57' and i8 and a central wide rib' 19 of rectangular crosssection project integrally from the body along the bottom face it (Figures 4-6), and extens ns ii",

i8 [9' thereof Similarly project first; the body along the ear race I! (Fig-lire 2) A pair of keys 20 and 21 of rectangular cross s'ecticn project integrally from the body along the top face 13 (Figures 1-3), and extensions 20' and 21 thereof similarly project from the body along the front face ll (Figures 1 and 8). The sides of these keys and ribs all lie in planes paraliel to the end faces I and I6, and the keys and ribs are spaced from the end faces l5 and it so that inner sides of the ribs I1 and H are spaced closer to the end face than the outer sides of the keys and 20, and similarly the inner sides of the ribs i8 and I8 and spaced closer to the end face 16 than the outer sides of the keys 21 and 2!, and so that the outer sides of the central ribs IS and 19' are spaced further inwardly of the respective end faces l5 and 16 than the opposite inner sides of the keys 20, 28', 2! and 2|. The ribs l7, l8 and I9 project uniformly the same distance from the bottom face l4 and the keys 2D and 2| project uniformly a lesser distance from the top face l3. In like manner, the ribs [1, l8 and [9' project uniformly the same distance from the rear face I2 and the keys 2B and 2! project uniformly a lesser distance from the front face H.

The header block It is used in conjunction with stretcher blocks which are the same in shape as if they had been made cutting through the middle of the block [0 along spaced planes parallel to and between the end faces I5 and I6, and

then preferably doubling the length of the stretcher blocks between the front and rear faces thereof. The resultant stretcher blocks would be in the form shown in Figures 1-5 of my Patent 2,482,719, supra, and are illustrated in Figures 9 and 11 hereof. A double wall 22 is shown in Figure 9 with two spaced single walls of such stretcher blocks, the outer single wall including endto-end stretcher blocks 23 and 24 and the inner single wall including end-to-end stretcher blocks 25 and 26. In Figure 10 a course of header blocks I0, l0 and [0" are shown overlying the stretcher blocks 2326 and binding them together in the double wall 22. When grouting 21 is poured between the adjacent header blocks [0, In and I0" it flows between the blocks adjacent the vertical keys with the outer pairs of ribs abutting the opposite header block faces and thereby preventing the grouting from escaping outwardly, and with the central vertical ribs abutting the opposite vertical header block faces and thereby preventing the grouting from flowing inwardly toward the central portions of the header blocks. When the grouting 27 reaches the level of the underlying stretcher blocks it flows horizontally along the keys of the stretcher blocks to bond them to the header blocks thereabove, as best illustrated in Figure 11, while the horizontal central keys along the bottom faces of the header blocks extend continuously across the space between the spaced rows of stretcher blocks and thereby save the grouting which would otherwise flow into the space between adjacent double rows of stretcher blocks. The central ribs of the header blocks thus preserve the space between the double wall to contain air or other insulating material, or to accommodate wiring and the like.

Referring to the details of stretcher blocks 24 and 26, for example, the block 24 has a rectangular body with a pair of L-shaped ribs 28 and 29 and key 30 projecting therefrom (Figures 9 and 11). The key 30 extends centrally around two intersecting faces of the block 24, and the ribs 28 and 29 extend around two other intersecting faces of the block 24 adjacent opposite sides thereof. The stretcher block key 30 has the same width and projection as the similar L-shaped header block keys 20 and 2|, and is aligned in the same vertical plane with the key 20. The stretcher block ribs 28 and 29 have the same projection as the L-shaped header block ribs 17, I8 and I9, and have the same spacing between their inner faces as the spacing between the ribs 11 and i9, and between ribs 18 and I9, of header block I0. Each of the single walls of stretcher blocks is laid with ribbed faces against keyed faces of abutting stretcher blocks, with the ribs straddling and spaced from the adjacent keys and abutting the opposite keyed faces. The stretcher block rib 28 is aligned in the same vertical plane with the header block rib 17, parallel to the adjacent exposed face of the double wall 22. The adjacent stretcher block 26 likewise has a rib 3| aligned in the same vertical plane with the header block rib is adjacent the other exposed face of the double wall 22. As shown in Figure 11, the central header block rib 19 extends across the space between the stretcher blocks 24 and 26 and abuts the top horizontal faces of the blocks 24 and 26, inwardly of their respective keys 30 and 32, and the horizontal legs of the keys 30 and 32 are respectively straddled between and spaced from the header block ribs H and I9, and I8 and I9. Grouting is received in the spaces adjacent and along the keys of the stretcher and header blocks to bind the blocks together and the ribs of the stretcher and header blocks all abut opposite keyed faces of stretcher or header blocks to confine this grouting adjacent the keys (Figures 9-11).

While I have shown and described a present preferred embodiment of the invention it will be recognized that the invention is not limited thereto but may be otherwise variously embodied and practiced within the scope of the following claim.

I claim:

A double wall comprising adjacent parallel spaced courses of stretcher blocks forming a pair of spaced single walls, each stretcher block having a generally rectangular body with a central L-shaped key extending centrally across two intersecting faces of the stretcher block and with a pair of spaced L-shaped ribs extending across two other intersecting faces of the stretcher block, with the ribs extending adjacent opposite sides of said other faces, said ke and ribs extending parallel to each other and to the exposed outer faces of the wall and the key having less projection than the ribs and less width than the spacing between the inside of the ribs, said stretcher blocks being laid with the pair of ribs across each ribbed face abutting an opposite keyed face and straddling and spaced from the key of said keyed face; said double wall also comprising at least one course of header blocks across an adjacent pair of spaced stretcher block courses, each header block having a generally rectangular body with a pair of spaced L-shaped keys extending across two intersecting faces of the header blocks and with one central and two outer L-shaped ribs extending in spaced relation across two other intersecting faces of the header block, said header block keys and ribs extending parallel to each other and to the exposed faces of the wall, the keys of the header and stretcher blocks having equal width and projection and the ribs of the header and stretcher blocks having equal projection and having equal 5 spacing between each pair of adjacent ribs of each block, the central rib of each header block being wider than the space between the said single walls but narrower than the space between each pair of header block keys, the header blocks being laid with the outer edges of their three ribs abutting opposite keyed faces of adjacent stretcher and header blocks with each key of the latter faces straddled between and spaced from the central and one outer rib of the opposite header block face, each header block having one of its keys aligned in the same vertical plane with the keys of the stretcher blocks which form one of said single walls and its other key aligned with the keys of the stretcher blocks which form the other said single wall, having its outer pair of ribs adjacent and parallel to the respective exposed outer faces of the double wall and each aligned in the same vertical plane with the stretcher block ribs adjacent the same exposed abutting a keyed horizontal face of a stretcher block alongside and spaced from the key thereof; and grouting confined in the vertical and horizontal spaces formed between opposite faces of the blocks along each key and between the pair of ribs straddling the key, said central ribs of the header blocks serving to strengthen the header blocks and to channel flow of fresh grouting along the spaces between the keys and their straddling ribs while keeping it out of the space between the pair of single walls formed by the stretcher blocks.

VICTOR A. RIGAUMONT.

References Cited in theefile of this patent UNITED STATES PATENTS Number Name Date 2,082,698 Karmanocky June 1, 1937 2,482,719 Rigaumont Sept. 20, 1949 FOREIGN PATENTS Number Country Date 18,139 Great Britain of 1890 18,812 Switzerland of 1899 124,556 Great Britain of 1919 223,820 Great Britain or" 1924 

